Watched all four episodes of the U.S.A.'s 2021 The Sons of Sam: A Descent into Darkness, about alleged serial killer "Son of Sam" David Berkowitz, a.k.a "the .44 Caliber Killer", who confessed to shooting 13 and murdering six in persons in New York, most of them lovers in parking lots, under the stoops of their own houses, and in the streets. The real protagonist in this documentary, however, is Maury Terry, a former reporter for IBM's in-house magazine, who conducted, on his own, a thorough investigation into Berkowitz's occult family and uncovered a network of Satanic groups responsible for a variety of heinous crimes. Terry eventually wrote his best-selling book The Ultimate Evil: An Investigation Into A Dangerous Satanic Cult.

The documentary spans approximately 20 years, from 1976 onward. It includes interviews with district attorneys, reporters, detectives, a psychologist, neighbors, victims' relatives, news editors, Air Force base investigators, a volunteer, and a producer. It is set against two of the worst decades of New York City, when murder, rape, robberies, pornography, and child abduction were rife. 

Sometimes we must pause and reflect on how First-World countries give their citizens everything they need yet how dysfunctional their families turn out to be, and how, despite democracy, the worst crimes always occur closest to their homes.